1044034021 has 12 divisors (see below), whose sum is σ = 1103959692. Its totient is φ = 987214464.

The previous prime is 1044034003. The next prime is 1044034037. The reversal of 1044034021 is 1204304401.

It can be written as a sum of positive squares in 2 ways, for example, as 461777121 + 582256900 = 21489^2 + 24130^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1044034021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1044034021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044034051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211635 + ... + 216511.

It is an arithmetic number, because the mean of its divisors is an integer number (91996641).

Almost surely, 2^1044034021 is an apocalyptic number.

It is an amenable number.

1044034021 is a deficient number, since it is larger than the sum of its proper divisors (59925671).

1044034021 is an equidigital number, since it uses as much as digits as its factorization.

1044034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1044034021 is about 32311.5153002765. The cubic root of 1044034021 is about 1014.4676836994.

Adding to 1044034021 its reverse (1204304401), we get a palindrome (2248338422).

The spelling of 1044034021 in words is "one billion, forty-four million, thirty-four thousand, twenty-one".